Καὶ τῶν λεγόντων εὖ καλὸν τὸ μανθάνειν → It is a fine thing to learn from those who speak well
See metal.
silver ore: P. ἀργυρῖτις, ἡ (Xen.), or use V. ὑπάργυρος πέτρα, ἡ (Eur., Cyclops 294).
